Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2ce55f2a52f998…

MALICIOUS

PDF

41.3 KB Created: 2020-08-06 20:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eeeed5492653b58c52bcba69ba693233 SHA-1: 7ee62702225315ca8ab815a193735913c03f83eb SHA-256: ee2ce55f2a52f9984a06cc3148ed78cecca33bd51eb750b0c789060e53981fcb
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into clicking the link, likely by posing as an invoice or payment notification. The primary malicious URL identified is https://ttraff.cc/pify?keyword=intercompany+sales+process+in+sap+sd+pdf, which redirects to other PDF files hosted on Shopify. The document body itself is heavily obfuscated but contains the malicious URL.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=intercompany+sales+process+in+sap+sd+pdf
    • http://files.erichber.com/uploads/1/3/2/6/132682936/vukuvute_mukuzubovijaku_wiwura_rewavozanufoze.pdf
    • http://files.miwildlife.org/uploads/1/3/0/8/130874598/2277756.pdf
    • http://files.rioranchoco.com/uploads/1/3/1/4/131407445/niwebumum.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8661/files/7953883269.pdf
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/wajasus.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/29156432420.pdf
    • https://cdn.shopify.com/s/files/1/0434/5764/2648/files/48354095911.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/enter_the_gungeon_lower_case_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/godojuvudozosumoliwaga.pdf
    • https://cdn.shopify.com/s/files/1/0432/9573/5976/files/animation_techniques_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/xogunedijozobufipu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/nujekuwuni.pdf
    • https://cdn.shopify.com/s/files/1/0438/2323/5234/files/vizirewibililebewibaxoz.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/oresteia_eumenides.pdf
    • https://cdn.shopify.com/s/files/1/0431/1010/5237/files/jurimetefon.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/65447396584.pdf
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/jefazobunoxovove.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000623b.bin
5954fa00e78a831dae738f4584608a75c7f816b0fdd3f0432c81ce85d4fe61e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x623B 5340 bytes
font_01_sfnt_off00007455.bin
879e3789c6931f832505300e0c52b52fed7fff1790d764853bd12a76148b1fab
pdf-font-stream PDF embedded font (sfnt) at offset 0x7455 10500 bytes